- Video Presenter Bridge
- webrtc.fav.on24.com (Webcam and Screen Share)
- vcu.fav.on24.com (VCU via H.323 or SIP-TCP only)
- ON24's IP Space: 199.83.44.0 / 22
- VPB Dial-In Numbers - Audio Only / POTS
- VPB Audio and Video Specifications
- Presenter Connection Bandwidth
- Presenter Use Cases
Video Presenter Bridge - Port Usage
| Protocol | Source-Port | Dest-Port | Description | Device |
| TCP | <ANY> | 443 | HTTPS | WebRTC Signaling |
| TCP/UDP | <ANY> | 40000-49999 | RTP / RTCP / RDP / RTMP | |
| TCP | <ANY> | 1720 | H.323 (H.224 signaling) | Endpoint H.323 Signaling |
| UDP | <ANY> | 1719 | H.323 (RAS signaling) | Endpoint H.323 RAS Signaling |
| TCP | <ANY> | 33000-39999 | H.323 (Q.931 / H.245 signaling) | Endpoint H.323 Media |
| TCP | <ANY> | 5060 | SIP | Endpoint SIP Signaling |
| TCP | <ANY> | 5061 | SIP / TLS | Endpoint SIP / TLS |
webrtc.fav.on24.com (Webcam and Screenshare)
vcu.fav.on24.com (VCU via H.323 or SIP-TCP only)
ON24's IP Space: 199.83.44.0 / 22
VPB Dial-In Numbers - Audio Only / POTS: 
- US: 415-325-5880 or 415-481-6010 (please check your event)
- US TOLL-FREE: 877-873-7555 or 833-508-4355 (please check your event)
- UK: 442030140616
- SPAIN: 34911436606
- FRANCE: 33170394985
- ITALY: 3901119620100
- NETHERLANDS: 31546788108
- BELGIUM: 3238084063
- GERMANY: 4942136583032
- FINLAND: 358923195596
- SINGAPORE: 6564948939
- HONG KONG: 85230507171
- AUSTRALIA: 61283109760
- JAPAN: 81345776342
- BRAZIL: 551139585673
- MEXICO: 525546312490
- ARGENTINA: 541159840899
VPB Audio and Video Specifications: 
Supported Protocols:
- H.323
- SIP - TCP only
- WebRTC
Audio Codecs:
- G.711(a/µ)
- G.719
- G.722
- G.722.1
- G.722.1 Annex C
- Siren7™
- Siren14™
- G.729
- G.729A
- G.729B
- Opus
- SILK
- MPEG-4 AAC-LD
- Speex
- AAC-LC
Video Codecs:
- H.261
- H.263
- H.263++
- H.264 (Constrained Baseline Profile and Baseline Profile)
- H.264 SVC
- VP8
- VP9
- RTVideo
Content Sharing:
- H.239
- BFCP
- RDP
- PSOM
- VP8
Presenter Connection Bandwidth 
VPB maximum connection bandwidth permitted is 1024 kbps (per connection). Some accounts can have up to 2500 kbps.
Presenter Use Cases
The Presenter UI does not generally require allow listing except for those using the Video Presenter Bridge (i.e., webcam or screen sharing). The list of addresses used by Elite Studio are below:
- *.on24.com
- *.millicast.com
- pm.on24.com
- pmelite.on24.com
- turn.fav.on24.com
- turn2.fav.on24.com
- vcu.fav.on24.com
- webrtc.fav.on24.com
- webrtc2.fav.on24.com
- h5live.nanocosmos.de
- cdn.jsdelivr.net
- telemetry.banuba.cloud
Comments
1 comment
Added telemetry.banuba.cloud and cdn.jsdelivr.net for virtual background capabilities under Presenter Use Cases.
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